1 files changed, 59 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-child-process-exec-encoding.js b/tests/node_compat/test/parallel/test-child-process-exec-encoding.js
new file mode 100644
index 000000000..fe03e98d0
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-child-process-exec-encoding.js
@@ -0,0 +1,59 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.8.0
+// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
+
+// TODO(PolarETech): The process.argv[3] check should be argv[2], and the
+// command passed to exec() should not need to include "run", "-A",
+// and "require.ts".
+
+'use strict';
+const common = require('../common');
+const stdoutData = 'foo';
+const stderrData = 'bar';
+
+if (process.argv[3] === 'child') {
+  // The following console calls are part of the test.
+  console.log(stdoutData);
+  console.error(stderrData);
+} else {
+  const assert = require('assert');
+  const cp = require('child_process');
+  const expectedStdout = `${stdoutData}\n`;
+  const expectedStderr = `${stderrData}\n`;
+  function run(options, callback) {
+    const cmd = `"${process.execPath}" run -A require.ts "${__filename}" child`;
+
+    cp.exec(cmd, options, common.mustSucceed((stdout, stderr) => {
+      callback(stdout, stderr);
+    }));
+  }
+
+  // Test default encoding, which should be utf8.
+  run({}, (stdout, stderr) => {
+    assert.strictEqual(typeof stdout, 'string');
+    assert.strictEqual(typeof stderr, 'string');
+    assert.strictEqual(stdout, expectedStdout);
+    assert.strictEqual(stderr, expectedStderr);
+  });
+
+  // Test explicit utf8 encoding.
+  run({ encoding: 'utf8' }, (stdout, stderr) => {
+    assert.strictEqual(typeof stdout, 'string');
+    assert.strictEqual(typeof stderr, 'string');
+    assert.strictEqual(stdout, expectedStdout);
+    assert.strictEqual(stderr, expectedStderr);
+  });
+
+  // Test cases that result in buffer encodings.
+  [undefined, null, 'buffer', 'invalid'].forEach((encoding) => {
+    run({ encoding }, (stdout, stderr) => {
+      assert(stdout instanceof Buffer);
+      assert(stdout instanceof Buffer);
+      assert.strictEqual(stdout.toString(), expectedStdout);
+      assert.strictEqual(stderr.toString(), expectedStderr);
+    });
+  });
+}